CN102177833B - Pulse micro-sprinkler irrigation system - Google Patents
Pulse micro-sprinkler irrigation system Download PDFInfo
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- CN102177833B CN102177833B CN2011100742065A CN201110074206A CN102177833B CN 102177833 B CN102177833 B CN 102177833B CN 2011100742065 A CN2011100742065 A CN 2011100742065A CN 201110074206 A CN201110074206 A CN 201110074206A CN 102177833 B CN102177833 B CN 102177833B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
Abstract
The invention relates to a pulse micro-sprinkler irrigation system. After passing pulse valves before all capillary pipes, pressurized water enters all the capillary pipes in a mode that pulse flow speeds up under rising pressure and slows down under lowering pressure, and the pressurized water is sprinkled out to irrigate crops through micro sprinkler heads arranged on all capillary pipes in a pulse mode. Quickly rising pressure can produce strong impact on blocking objects, and slowly lowering pressure cannot lead water in the capillary pipes behind the pulse valves to return, form negative pressure on water outlet holes of sprinklers and block the negative pressure sucking type water outlet holes. The pulse frequency can be adjusted in a large range, the pulse frequency can be slowed down under the same irrigation strength, and the sprinklers with large diameter water outlet holes are adopted to form the pulse micro-sprinkler irrigation system which does not require filters. The use of the pulse irrigation mode for micro-sprinkler irrigation overcomes the defects of concentrated annular water output of other micro-sprinkler irrigation equipment. The pulse micro-sprinkler irrigation system has the characteristics of blockage resistance, uniform sprinkling and low cost.
Description
Technical field:
The present invention relates to the field irrigation field, relate in particular to the pulse microspray irrigation system of a kind of anti-obstruction, the good uniformity of pouring water.
Background technology:
The pulsed irrigation system is that American I ntertec company researchs and develops a brand-new water-saving irrigation installation successfully in the eighties in 20th century; Its outstanding advantage is to have excellent performance of anti-blockage; Solve the susceptible to plugging difficult problem of irrigation system effectively, saved expensive meticulous filtration system.The pulsed irrigation system comprises: supply water to do, arm, pulser assembly, the elasticity of pouring water hollow billet and the water jet assembly installed in the stem of every symmetrical arm.Wherein, the pulser assembly is made up of parts such as frequency controller, pulse valve, pressure-regulating valve and fast interfaces, is the control centre of system.Therefore the elasticity of pouring water hollow billet is called the elasticity hollow billet of pouring water by the dedicated elas-tic made.The water jet assembly is made up of shower nozzle, vertical tube, water jet, support bar etc.Major defect is: 1, complex structure, and the elasticity of pouring water hollow billet needs the dedicated elas-tic made, and input cost is too high, is not suitable for national conditions; 2, back water jet water spray carries out after leaning on the release of previous water jet water spray successively, and any water jet breaks down, and system is all out of service; 3, the pulsed irrigation system is that mode through pulser assembly sluicing decompression starts water jet water spray process; Each is taken turns when starting the water jet water spray; The part of pressurized water is directly released in first water jet to pulser of the elasticity of respectively pouring water hollow billet assembly pipeline; Existing energy loss has water loss again.
China was exclusively introduced this patented technology of the U.S. and had been produced this equipment by Ying Te Tyke, Tianjin slight irrigation company in 1993, but eventually because of " not acclimatized ", was not suitable for national conditions, and stopped to produce.
Relevant home equipment situation; The enforcement period of the ninth five-year plan, Laiwu Plastic Products Ltd., Shandong has born " pulse drip irrigation system " country " 95 " emphasis tackling of key scientific and technical problems special topic; Having developed with capsule impulse generator and quantitative drip irrigation pipe irrigator is the pulse drip irrigation system of primary structure; Filled up the blank of domestic pulse irrigation installation, it is simple in structure, and input cost is well below the Intertec Company products.Capsule impulse generator drives one section length and apopore quantity, the big or small quantitative drip irrigation pipe irrigator that all can not change of being processed with apopore at sidewall; The size of the capsule of capsule impulse generator has determined the length of quantitative drip irrigation pipe irrigator and quantity, the size of apopore, and the capsule through the capsule impulse generator supplies water fast to quantitative drip irrigation pipe irrigator and realizes the pulse irrigation with stopping fast supplying water.There is following defective in this product: 1, pulse frequency can't be adjusted, and also just can not adjust the intensity of pouring water as required; 2, pulse frequency is too high, under the situation of the intensity of pouring water equally, causes the apopore aperture too small, and Φ 0.6mm is only arranged, and does not avoid the obstruction SENSITIVE SIZE of aperture less than 0.7mm, so, also need filter to filter.And the pulse frequency of Intertec company pulse irrigation product is adjustable, and slower, under the situation of the intensity of pouring water equally; The apopore aperture is Φ 4mm; Granule foreign all can pass through in the general water, and therefore, the pulse of Intertec company is irrigated product and generally need not to filter.3, can cause negative pressure suction-type apopore to stop up; The pulse drip irrigation system of said structure; The capsule impulse generator stops to supply water fast, can cause the water generates " resilience " in the quantitative drip irrigation pipe irrigator pipeline behind the capsule impulse generator, forms negative pressure at the apopore of quantitative drip irrigation pipe irrigator; Cause negative pressure suction-type apopore to stop up easily, be positioned at quantitative drip irrigation pipe irrigator tail end apopore more so.Obviously, above-mentioned defective, making with capsule impulse generator and quantitative drip irrigation pipe irrigator is the pulse drip irrigation system of primary structure, is making a discount aspect the performance of anti-blockage of pulse irrigation pursuit.
The pulse irrigation method is used for microspray irrigation, water jet water spray moment, water-jet velocity by zero to maximum; Reduce to zero then; Jet length also changes thereupon, therefore can reach higher rainfall distribution uniformity, thereby has overcome the shortcoming that other microspray irrigation equipment precipitation (intensity) ring-type is concentrated.But, adopt external product high because of dropping into, the domestic market is difficult to accept.And home products can not be used for the pulse microspray irrigation because of the reason on the performance.
Summary of the invention:
The object of the present invention is to provide a kind of pulse frequency adjustable, simple in structure, cost is low, and the irrigator apopore does not have negative pressure, and performance of anti-blockage is excellent, sprays the pulse microspray irrigation system of good uniformity.
The objective of the invention is to realize like this:
A kind of pulse microspray irrigation system comprises: water source, water pump, main, arm, pulse valve, hollow billet, mini sprinkler, and the water inlet of water pump is connected with the water source; The delivery port of water pump is connected with the main water inlet, and the main apopore is connected with arm, and arm is connected with some hollow billets through several pulse valves; The water inlet of pulse valve leads to arm, and the delivery port of pulse valve leads to hollow billet, and several mini sprinklers are installed on every hollow billet; Pulse valve comprises: valve body, water inlet, intake antrum, lock body guide bar support, lock body guide rod, lock body, lock groove, water chamber, lock body push-and-pull spring, delivery port, barrier film, control chamber, barrier film extension spring, control chamber intake-outlet, control chamber water inlet pipe and water outlet pipe, screw rod, thumb wheel, and laterally main cross section is circle in intake antrum, water chamber, the control chamber chamber, and lock body, lock groove are truncated cone-shaped and contact-making surface coincide each other; The lock body is processed by elastomeric material, and lock body push-and-pull spring is a volute spring, and barrier film is by the ripply soft silastic material circular film of outer rim; Cover on the two sides of circular film middle part and fixing circular corrosion resistant plate and processing, the area of circular corrosion resistant plate is greater than the major part area of lock body, and the control chamber water inlet pipe and water outlet pipe is a circular cross section; One end of control chamber water inlet pipe and water outlet pipe communicates with intake antrum, and the other end communicates with control chamber through the control chamber intake-outlet, and the control chamber intake-outlet is the narrow slit of width less than control chamber water inlet pipe and water outlet pipe diameter; Narrow slit is positioned at the control chamber water inlet pipe and water outlet pipe near the below of control chamber one end and communicate with it, and narrow slit length direction and control chamber water inlet pipe and water outlet pipe parallel near a section of control chamber one end has screw thread on the screw rod; The valve body of contact also has respective threads with it, and screw thread adopts elastomeric material (for example poly fourfluoroplastics) to process, and makes it have stagnant water effect; One end of screw rod is positioned at outside the valve body and is fixed with thumb wheel, and the other end of screw rod enters into the inside of control chamber water inlet pipe and water outlet pipe near control chamber one end, and blocks the narrow slit runner of control chamber intake-outlet; Screw rod enters into the degree of depth of control chamber water inlet pipe and water outlet pipe near the inside of control chamber one end, has determined the size of the area of passage of control chamber intake-outlet narrow slit runner, can enter into the degree of depth of control chamber water inlet pipe and water outlet pipe near the inside of control chamber one end through rotation thumb wheel adjusting screw(rod); And then the size of regulating the area of passage of control chamber intake-outlet narrow slit runner; Intake antrum is communicated with water inlet, and lock body guide bar support, lock body guide rod are arranged in the intake antrum, and an end of lock body guide rod is fixed in the center of the big first end of lock body; The other end of lock body guide rod passes the guide hole of lock body guide bar support; Intake antrum is communicated with water chamber through the lock groove, and water chamber is provided with delivery port, and lock body push-and-pull spring is arranged in the water chamber; The cone point of lock body push-and-pull spring is fixed in microcephaly's one end of lock body; The tapered bottom end of lock body push-and-pull spring is fixed on the barrier film, and water chamber and control chamber separate through barrier film, and an end that is positioned at the barrier film extension spring of control chamber is fixed on the barrier film; The other end of barrier film extension spring is fixed on the valve body, and the center of water inlet, lock body guide rod, lock body, lock groove, lock body push-and-pull spring, barrier film, barrier film extension spring lateral cross section all point-blank.
Pulse micro spray irrigation process is following:
Send into main after the water at water source is pressurizeed by water pump and get into arm; Mode with the pulse current after through the pulse valve before each bar hollow billet gets into each bar hollow billet; Eject the pouring crops through the mini sprinkler installed on each bar hollow billet with the mode of pulse, accomplish pulse micro spray irrigation process.
The process that pulse valve forms the pulse current is following:
Pressure water gets into intake antrum from water inlet, and what receive lock groove inner brake body stops that pressure water can not get into water chamber, and flows out pulse valve.Pressure water in the intake antrum gets into control chamber through control chamber water inlet pipe and water outlet pipe, control chamber intake-outlet, and pressure in the control chamber and the pressure in the intake antrum reach unanimity, owing to there is not pressure water to flow in the water chamber; The pressure of control chamber is greater than the pressure in the water chamber, and barrier film receives the promotion of this pressure reduction, moves to the direction of water chamber; Pressure water in the intake antrum continues to get into control chamber through control chamber water inlet pipe and water outlet pipe, control chamber intake-outlet, and the direction that barrier film is able to continue to water chamber moves, the tensile membrane extension spring; Lock body push-and-pull spring is compressed, and the lock body of attempting to promote to be fixed on the lock body push-and-pull spring leaves the lock groove, lets current pass through; But owing to there is not pressure water to flow in the water chamber, there is huge pressure reduction, wouldn't the lock body be pushed away the lock groove in lock body both sides; Lock body push-and-pull spring continues to be compressed, and savings energy (elastic force) is enough to obey the huge pressure reduction of lock body both sides up to lock body push-and-pull spring because of being compressed the elastic force of putting aside; The lock body is pushed away the lock groove, and the lock body is pushed away the moment of lock groove, and the huge pressure reduction that lock body both sides exist rapidly disappears; Compressed lock body push-and-pull spring discharges rapidly; Promote the lock body and leave the lock groove fast, pressure water stream gets into water chamber through the lock groove fast and goes out delivery port, accomplishes the process of opening pulse valve.
After pressure water got into water chamber, pressure in the water chamber and the pressure in the control chamber reached unanimity, and barrier film resets under the pulling of barrier film extension spring gradually; Unnecessary water in the control chamber is clamp-oned intake antrum; Simultaneously, the barrier film that resets gradually newly gets into the lock groove through lock body push-and-pull spring pulling lock body weight, and the blocking-up pressure water gets into water chamber; Pulse valve is closed, and delivery port does not have pressure water to flow out.
Because the pressure water in the intake antrum is communicated with control chamber through control chamber water inlet pipe and water outlet pipe, control chamber intake-outlet, the pressure in the control chamber is consistent with the pressure in the intake antrum; Because do not have pressure water to flow in the water chamber, the water chamber internal pressure reduces gradually, the pressure of control chamber is greater than the pressure in the water chamber; Barrier film receives the promotion of this pressure reduction, moves to the direction of water chamber, and the pressure water in the intake antrum gets into control chamber through control chamber water inlet pipe and water outlet pipe, control chamber intake-outlet; The direction that barrier film is able to continue to water chamber moves, the tensile membrane extension spring, and lock body push-and-pull spring is compressed; The lock body of attempting to promote to be fixed on the lock body push-and-pull spring leaves the lock groove, lets current pass through, but owing to there is not pressure water to flow in the water chamber; Have huge pressure reduction in lock body both sides, wouldn't the lock body be pushed away the lock groove, lock body push-and-pull spring continues to be compressed; Savings energy (elastic force) is enough to obey the huge pressure reduction of lock body both sides up to lock body push-and-pull spring because of being compressed the elastic force of putting aside, and the lock body is pushed away the lock groove; The lock body is pushed away the moment of lock groove, and the huge pressure reduction that lock body both sides exist rapidly disappears, and compressed lock body push-and-pull spring discharges rapidly; Promote the lock body and leave the lock groove fast, pressure water stream gets into water chamber through the lock groove fast and goes out delivery port, accomplishes the process of opening pulse valve once more.
After pressure water got into water chamber, pressure in the water chamber and the pressure in the control chamber reached unanimity, and barrier film resets under the pulling of barrier film extension spring gradually; Unnecessary water in the control chamber is clamp-oned intake antrum; Simultaneously, the barrier film that resets gradually newly gets into the lock groove through lock body push-and-pull spring pulling lock body weight, and the blocking-up pressure water gets into water chamber; Pulse valve is closed once more, and delivery port does not have pressure water to flow out.
So repeatedly, form the pulse current.Pulse frequency depends on the speed of pressure water turnover control chamber; And the speed of pressure water turnover control chamber depends on the size of control chamber inlet and outlet channel area of passage, and the big I of control chamber inlet and outlet channel area of passage realizes through the degree that rotation thumb wheel adjusting screw(rod) blocks control chamber intake-outlet narrow slit runner.
The present invention has following good effect:
1, the pulse valve of pulse microspray irrigation of the present invention system, the outstanding feature of the pulse current of formation is as shown in Figure 4, and it is fast that pressure rises; And decline is slow; Zooming pressure can paired pulses microspray irrigation system tamper form strong impact, and the pressure that slowly descends can not make the water generates " resilience " in the hollow billet behind the pulse microspray irrigation system pulse valve, forms negative pressure at the apopore of irrigator; And causing negative pressure suction-type apopore to stop up, performance of anti-blockage is excellent;
2, the pulse valve of pulse microspray irrigation of the present invention system, pulse frequency is adjustable on a large scale, under the same intensity of pouring water, can slow down pulse frequency, and adopts the big irrigator in water outlet aperture to form the pulse microspray irrigation system that need not filter;
3, the pulse irrigation method is used for microspray irrigation, water jet water spray moment, water-jet velocity by zero to maximum; Reduce to zero then; Jet length also changes thereupon, therefore can reach higher rainfall distribution uniformity, thereby has overcome the shortcoming that other microspray irrigation equipment precipitation (intensity) ring-type is concentrated.
4, pulse microspray irrigation of the present invention system, simple in structure than imported product, input cost is low, and market is easy to accept, and helps application.
Description of drawings:
Fig. 1 is the pulse valve original state sketch map of pulse microspray irrigation of the present invention system.
Fig. 2 for the pulse valve of pulse microspray irrigation of the present invention system open before the momentary status sketch map.
Fig. 3 opens the back view for the pulse valve of pulse microspray irrigation of the present invention system.
Fig. 4 is that the pulsating water flowing pressure that the pulse valve of pulse microspray irrigation of the present invention system forms changes sketch map.
Embodiment:
A kind of pulse microspray irrigation system comprises: water source, water pump, main, arm, pulse valve, hollow billet, mini sprinkler, and the water inlet of water pump is connected with the water source; The delivery port of water pump is connected with the main water inlet, and the main apopore is connected with arm, and arm is connected with some hollow billets through several pulse valves; The water inlet of pulse valve leads to arm, and the delivery port of pulse valve leads to hollow billet, and several mini sprinklers are installed on every hollow billet; Pulse valve such as Fig. 1, Fig. 2, shown in Figure 3 comprise: valve body 1, water inlet 2, intake antrum 3, lock body guide bar support 4, lock body guide rod 5, lock body 6, lock groove 7, water chamber 8, lock body push-and-pull spring 9, delivery port 10, barrier film 11, control chamber 12, barrier film extension spring 13, control chamber intake-outlet 14, control chamber water inlet pipe and water outlet pipe 15, screw rod 16, thumb wheel 17, and laterally main cross section is circle in intake antrum 3, water chamber 8, control chamber 12 chambeies; Lock body 6, lock groove 7 are truncated cone-shaped and contact-making surface and coincide each other, and lock body 6 is processed by elastomeric material, and lock body push-and-pull spring 9 is a volute spring; Barrier film 11 is by the ripply soft silastic material circular film of outer rim, covers on the two sides of circular film middle part and fixing circular corrosion resistant plate and processing, and the area of circular corrosion resistant plate is greater than the major part area of lock body 6; Control chamber water inlet pipe and water outlet pipe 15 is a circular cross section, and an end of control chamber water inlet pipe and water outlet pipe 15 communicates with intake antrum 3, and the other end communicates with control chamber 12 through control chamber intake-outlet 14; Control chamber intake-outlet 14 is width narrow slits less than control chamber water inlet pipe and water outlet pipe 15 diameters, and narrow slit is positioned at control chamber water inlet pipe and water outlet pipe 15 near the below of control chamber 12 1 ends and communicate with it, narrow slit length direction and control chamber water inlet pipe and water outlet pipe 15 parallel near a section of control chamber 12 1 ends; On the screw rod 16 screw thread is arranged, the valve body 1 of contact also has respective threads with it, and screw thread adopts elastomeric material (for example poly fourfluoroplastics) to process; Make it have stagnant water effect, an end of screw rod 16 is positioned at outside the valve body 1 and is fixed with thumb wheel 17, and the other end of screw rod 16 enters into the inside of control chamber water inlet pipe and water outlet pipe 15 near control chamber 12 1 ends; And blocking the narrow slit runner of control chamber intake-outlet 14, screw rod 16 enters into the degree of depth of control chamber water inlet pipe and water outlet pipe 15 near the inside of control chamber 12 1 ends, has determined the size of the area of passage of control chamber intake-outlet 14 narrow slit runners; Can enter into the degree of depth of control chamber water inlet pipe and water outlet pipe 15 near the inside of control chamber 12 1 ends through rotation thumb wheel 17 adjusting screw(rod)s 16, and then regulate the size of the area of passage of control chamber intake-outlet 14 narrow slit runners, intake antrum 3 is communicated with water inlet 2; Lock body guide bar support 4, lock body guide rod 5 are arranged in the intake antrum 3; One end of lock body guide rod 5 is fixed in the center of the big first end of lock body 6, and the other end of lock body guide rod 5 passes the guide hole of lock body guide bar support 4, and intake antrum 3 is communicated with water chamber 8 through lock groove 7; Water chamber 8 is provided with delivery port 10; Lock body push-and-pull spring 9 is arranged in the water chamber 8, and the cone point of lock body push-and-pull spring 9 is fixed in microcephaly's one end of lock body 6, and the tapered bottom end of lock body push-and-pull spring 9 is fixed on the barrier film 11; Water chamber 8 separates through barrier film 11 with control chamber 12; An end that is positioned at the barrier film extension spring 13 of control chamber 12 is fixed on the barrier film 11, and the other end of barrier film extension spring 13 is fixed on the valve body 1, and the center of water inlet 2, lock body guide rod 5, lock body 6, lock groove 7, lock body push-and-pull spring 9, barrier film 11, barrier film extension spring 13 lateral cross section all point-blank.
Pulse micro spray irrigation process is following:
Send into main after the water at water source is pressurizeed by water pump and get into arm; Mode with the pulse current after through the pulse valve before each bar hollow billet gets into each bar hollow billet; Eject the pouring crops through the mini sprinkler installed on each bar hollow billet with the mode of pulse, accomplish pulse micro spray irrigation process.
The process that pulse valve forms the pulse current is following:
As shown in Figure 1, pressure water gets into intake antrum 3 from water inlet 2, receives stopping of lock groove 7 inner brake bodies 6, and pressure water can not get into water chamber 8, and flows out pulse valve.Pressure water in the intake antrum 3 gets into control chamber 12 through control chamber water inlet pipe and water outlet pipe 15, control chamber intake-outlet 14, and the pressure in pressure in the control chamber 12 and the intake antrum 3 reaches unanimity, owing to there is not pressure water to flow in the water chamber 8; The pressure of control chamber 12 is greater than the pressure in the water chamber 8, and barrier film 11 receives the promotion of this pressure reduction, moves to the direction of water chamber 8; Pressure water in the intake antrum 3 continues to get into control chamber 12 through control chamber water inlet pipe and water outlet pipe 15, control chamber intake-outlet 14, and the direction that barrier film 11 is able to continue to water chamber 8 moves, tensile membrane extension spring 13; Lock body push-and-pull spring 9 is compressed, and the lock body of attempting to promote to be fixed on the lock body push-and-pull spring 96 leaves lock groove 7, lets current pass through; But owing to there is not pressure water to flow in the water chamber 8, there is huge pressure reduction, wouldn't lock body 6 be pushed away lock groove 7 in lock body 6 both sides; Lock body push-and-pull spring 9 continues to be compressed, and savings energy (elastic force) is as shown in Figure 2; Be enough to obey the huge pressure reduction of lock body 6 both sides up to lock body push-and-pull spring 9 because of being compressed the elastic force of putting aside, lock body 6 is pushed away lock groove 7, lock body 6 is pushed away the moment of lock groove 7; The huge pressure reduction that lock body 6 both sides exist rapidly disappears; Compressed lock body push-and-pull spring 9 discharges rapidly, promotes lock body 6 and leaves lock groove 7 fast, and pressure water stream gets into water chamber 8 through lock groove 7 fast and goes out delivery port 10; As shown in Figure 3, accomplish the process of opening pulse valve.
After pressure water got into water chamber 8, the pressure in pressure in the water chamber 8 and the control chamber 12 reached unanimity, and barrier film 11 resets under the pulling of barrier film extension spring 13 gradually; Unnecessary water in the control chamber 12 is clamp-oned intake antrum 3, and simultaneously, the barrier film 11 that resets gradually gets into lock groove 7 again through lock body push-and-pull spring 9 pulling lock bodies 6; The blocking-up pressure water gets into water chamber 8; Pulse valve is closed, and delivery port 10 does not have pressure water to flow out, and is as shown in Figure 1.
Because the pressure water in the intake antrum 3 is communicated with control chamber 12 through control chamber water inlet pipe and water outlet pipe 15, control chamber intake-outlet 14, the pressure in the control chamber 12 is consistent with the pressure in the intake antrum 3; Because do not have pressure water to flow in the water chamber 8, water chamber 8 internal pressures reduce gradually, the pressure of control chamber 12 is greater than the pressure in the water chamber 8; Barrier film 11 receives the promotion of this pressure reduction, moves to the direction of water chamber 8, and the pressure waters in the intake antrum 3 get into control chambers 12 through control chamber water inlet pipe and water outlet pipe 15, control chamber intake-outlet 14; The direction that barrier film 11 is able to continue to water chamber 8 moves, tensile membrane extension spring 13, and lock body push-and-pull spring 9 is compressed; The lock body of attempting to promote to be fixed on the lock body push-and-pull spring 96 leaves lock groove 7, lets current pass through, but owing to there is not pressure water to flow in the water chamber 8; Have huge pressure reduction in lock body 6 both sides, wouldn't lock body 6 be pushed away lock groove 7, lock body push-and-pull spring 9 continues to be compressed; Savings energy (elastic force), as shown in Figure 2, be enough to obey the huge pressure reduction of lock body 6 both sides up to lock body push-and-pull spring 9 because of being compressed the elastic force of putting aside; Lock body 6 is pushed away lock groove 7, and lock body 6 is pushed away the moment of lock groove 7, and the huge pressure reduction that lock body 6 both sides exist rapidly disappears; Compressed lock body push-and-pull spring 9 discharges rapidly, promotes lock body 6 and leaves lock groove 7 fast, and pressure water stream gets into water chamber 8 through lock groove 7 fast and goes out delivery port 10; As shown in Figure 3, accomplish the process of opening pulse valve once more.
After pressure water got into water chamber 8, the pressure in pressure in the water chamber 8 and the control chamber 12 reached unanimity, and barrier film 11 resets under the pulling of barrier film extension spring 13 gradually; Unnecessary water in the control chamber 12 is clamp-oned intake antrum 3, and simultaneously, the barrier film 11 that resets gradually gets into lock groove 7 again through lock body push-and-pull spring 9 pulling lock bodies 6; The blocking-up pressure water gets into water chamber 8; Pulse valve is closed once more, and delivery port 10 does not have pressure water to flow out, and is as shown in Figure 1.
So repeatedly, form the pulse current.Pulse frequency depends on the speed of pressure water turnover control chamber 12; And the speed of pressure water turnover control chamber 12 depends on the size of control chamber 12 inlet and outlet channel area of passages, and the big I of control chamber 12 inlet and outlet channel area of passages realizes through the degree that rotation thumb wheel 17 adjusting screw(rod)s 16 block control chamber intake-outlet 14 narrow slit runners.
Claims (1)
1. pulse microspray irrigation system, it is characterized in that: comprise water source, water pump, main, arm, pulse valve, hollow billet, mini sprinkler, the water inlet of water pump is connected with the water source; The delivery port of water pump is connected with the main water inlet, and the main apopore is connected with arm, and arm is connected with some hollow billets through several pulse valves; The water inlet of pulse valve leads to arm, and the delivery port of pulse valve leads to hollow billet, and several mini sprinklers are installed on every hollow billet; Pulse valve is made up of valve body (1), water inlet (2), intake antrum (3), lock body guide bar support (4), lock body guide rod (5), lock body (6), lock groove (7), water chamber (8), lock body push-and-pull spring (9), delivery port (10), barrier film (11), control chamber (12), barrier film extension spring (13), control chamber intake-outlet (14), control chamber water inlet pipe and water outlet pipe (15), screw rod (16), thumb wheel (17), and laterally main cross section is circle in intake antrum (3), water chamber (8), control chamber (12) chamber, and lock body (6), lock groove (7) are truncated cone-shaped and contact-making surface coincide each other; Lock body (6) is processed by elastomeric material, and lock body push-and-pull spring (9) is a volute spring, and barrier film (11) is by the ripply soft silastic material circular film of outer rim; Cover on the two sides of circular film middle part and fixing circular corrosion resistant plate and processing, the area of circular corrosion resistant plate is greater than the major part area of lock body (6), and control chamber water inlet pipe and water outlet pipe (15) is a circular cross section; One end of control chamber water inlet pipe and water outlet pipe (15) communicates with intake antrum (3), and the other end communicates with control chamber (12) through control chamber intake-outlet (14), and control chamber intake-outlet (14) is the narrow slit of width less than control chamber water inlet pipe and water outlet pipe (15) diameter; Narrow slit is positioned at control chamber water inlet pipe and water outlet pipe (15) near the below of control chamber (12) one ends and communicate with it, narrow slit length direction and control chamber water inlet pipe and water outlet pipe (15) parallel near a section of control chamber (12) one ends, and screw rod has screw thread on (16); The valve body (1) of contact also has respective threads with it, and screw thread adopts elastomeric material to process, and makes it have stagnant water effect; One end of screw rod (16) is positioned at outside the valve body (1) and is fixed with thumb wheel (17), and the other end of screw rod (16) enters into the inside of control chamber water inlet pipe and water outlet pipe (15) near control chamber (12) one ends, and blocks the narrow slit runner of control chamber intake-outlet (14); Screw rod (16) enters into the degree of depth of control chamber water inlet pipe and water outlet pipe (15) near the inside of control chamber (12) one ends, has determined the size of the area of passage of control chamber intake-outlet (14) narrow slit runner, can enter into the degree of depth of control chamber water inlet pipe and water outlet pipe (15) near the inside of control chamber (12) one ends through rotation thumb wheel (17) adjusting screw(rod) (16); And then the size of regulating the area of passage of control chamber intake-outlet (14) narrow slit runner; Intake antrum (3) is communicated with water inlet (2), and lock body guide bar support (4), lock body guide rod (5) are arranged in the intake antrum (3), and an end of lock body guide rod (5) is fixed in the center of the big first end of lock body (6); The other end of lock body guide rod (5) passes the guide hole of lock body guide bar support (4); Intake antrum (3) is communicated with water chamber (8) through lock groove (7), and water chamber (8) is provided with delivery port (10), and lock body push-and-pull spring (9) is arranged in the water chamber (8); The cone point of lock body push-and-pull spring (9) is fixed in microcephaly's one end of lock body (6); The tapered bottom end of lock body push-and-pull spring (9) is fixed on the barrier film (11), and water chamber (8) and control chamber (12) separate through barrier film (11), and an end that is positioned at the barrier film extension spring (13) of control chamber (12) is fixed on the barrier film (11); The other end of barrier film extension spring (13) is fixed on the valve body (1), and the center of water inlet (2), lock body guide rod (5), lock body (6), lock groove (7), lock body push-and-pull spring (9), barrier film (11), barrier film extension spring (13) lateral cross section all point-blank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100742065A CN102177833B (en) | 2011-03-28 | 2011-03-28 | Pulse micro-sprinkler irrigation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100742065A CN102177833B (en) | 2011-03-28 | 2011-03-28 | Pulse micro-sprinkler irrigation system |
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| CN102177833A CN102177833A (en) | 2011-09-14 |
| CN102177833B true CN102177833B (en) | 2012-07-25 |
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| CN2011100742065A Expired - Fee Related CN102177833B (en) | 2011-03-28 | 2011-03-28 | Pulse micro-sprinkler irrigation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103125343A (en) * | 2013-03-07 | 2013-06-05 | 内蒙古沐禾节水工程设备有限公司 | Grassland sprinkling irrigation system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102577911B (en) * | 2012-03-21 | 2013-07-17 | 江苏大学 | Jet flow pulse drip irrigation emitter and drip irrigation method |
| JP6710612B2 (en) * | 2016-09-21 | 2020-06-17 | 株式会社エンプラス | Emitter and drip irrigation tubes |
| CN108812218B (en) * | 2018-07-05 | 2023-09-15 | 华维节水科技集团股份有限公司 | Pressure compensation micro-sprinkling irrigation water device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5249745A (en) * | 1991-09-19 | 1993-10-05 | Giacomo Bertolotti | Fluid distribution system |
| IT1251938B (en) * | 1991-10-17 | 1995-05-27 | Enichem Agricoltura Spa | DEVICE FOR PULSED DISPENSING OF AN IRRIGATION LIQUID AND IRRIGATION SYSTEMS THAT INCORPORATE THE DEVICE |
| CN2296619Y (en) * | 1997-04-28 | 1998-11-11 | 山东省莱芜塑料制品(集团)总厂 | Miniature irrigation impulse generator |
| CN202035346U (en) * | 2011-03-28 | 2011-11-16 | 中国农业科学院农田灌溉研究所 | Pulse micro-irrigation system |
-
2011
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103125343A (en) * | 2013-03-07 | 2013-06-05 | 内蒙古沐禾节水工程设备有限公司 | Grassland sprinkling irrigation system |
| CN103125343B (en) * | 2013-03-07 | 2014-09-10 | 内蒙古沐禾节水工程设备有限公司 | Grassland sprinkling irrigation system |
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| Publication number | Publication date |
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| CN102177833A (en) | 2011-09-14 |
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